He's hopeful Tracy Smith's courage in speaking out will be enough to prompt change.

"There's been an utter failure of government policy that a life has been lost."

Ms Smith has vowed to continue to lobby for change in memory of her sister.

"She was a beautiful person, my sister.

"It is a disease that is hidden because it brings in a lot of revenue for the government," Tracy Smith said.

*Names have been changed by the request of the suicide victim's family.

Lifeline: Help is available. No one needs to face their problems alone. Call Lifeline 24 hour crisis line on 13 11 14 for support. For more information about depression and anxiety, available treatments and where to get help call the beyondblue info line -1300 22 4636 - or visit www.beyondblue.org.au